What kind of home is 4 Heol Y Dderwen, CF15 7UJ?

4 Heol Y Dderwen, CF15 7UJ is a semi-detached house.

What was the last sold price for 4 Heol Y Dderwen, CF15 7UJ?

4 Heol Y Dderwen, CF15 7UJ last sold for £127,000 in July 2023, around 3 years ago. Source: HM Land Registry.

How energy efficient is 4 Heol Y Dderwen, CF15 7UJ?

The current EPC rating for 4 Heol Y Dderwen, CF15 7UJ is D with a score of 68 out of 100, lodged in March 2025. It has improved from a F recorded in March 2023 (2 bands). The assessor estimates the property could reach a B. Source: EPC Register.

How big is 4 Heol Y Dderwen, CF15 7UJ?

4 Heol Y Dderwen, CF15 7UJ has a recorded floor area of 89 m² (958 sq ft). Source: EPC Register.

What heating system does 4 Heol Y Dderwen, CF15 7UJ use?

The latest EPC at 4 Heol Y Dderwen, CF15 7UJ records mains gas as the main heating fuel. Source: EPC Register.

What is the council tax band for 4 Heol Y Dderwen, CF15 7UJ?

4 Heol Y Dderwen, CF15 7UJ is in council tax band C.

Which area is 4 Heol Y Dderwen, CF15 7UJ in?

4 Heol Y Dderwen, CF15 7UJ sits in Nantgarw, Cardiff, Cardiff. It falls within the CF15 postcode district.

Is 4 Heol Y Dderwen, CF15 7UJ in a safe area?

Police records around 4 Heol Y Dderwen, CF15 7UJ show an average of 2 reported crimes per month over the last 5 months. Criminal damage arson makes up roughly 40% of reports, the most common category. The overall trend is broadly stable. Source: Police UK.

How well connected is 4 Heol Y Dderwen, CF15 7UJ?

The closest bus stop to 4 Heol Y Dderwen, CF15 7UJ is Heol-y-Dderwen, 32m away. The nearest rail option is Trefforest Estate Rail Station, 1.9km away.

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4 Heol Y Dderwen, Nantgarw, Cardiff, CF15 7UJ

Property type

Semi-detached

Habitable rooms

From EPC

Floor area

89 m²

958 sq ft

Energy rating

Score 68

Council tax

Band C

Tenure

Owner Occupied

Overview

About 4 Heol Y Dderwen

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

4 Heol Y Dderwen is a semi-detached house in Nantgarw, Cardiff, Cardiff (CF15 7UJ). It has a recorded floor area of 89 m² (around 958 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (March 2025) shows a D (score 68), on the cusp of jumping into the C band. When first surveyed in March 2023 the rating was F, the property has climbed 2 bands since. Between certificates, roof efficiency went from Poor to Good, window efficiency went from Very Poor to Good and hot-water efficiency went from Very Poor to Good. The recommended improvements would lift it to B (score 86), a 2-band jump.

Today's modelled estimate of £223,000 sits 75.6% above the 2023 sale of £127,000. Sold July 2023 for £127,000.

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Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

Recommended upgrades on file would lift this property by multiple EPC bands.

Current Certificate(1 of 2)

Mar 2025

EPC Rating

D68

Main Heating

Gas

Main Fuel

Gas

Hot Water

Good

Windows

Good

CO2 Emissions

3.4 t/year

Occupancy

Owner Occupied

Property Improvements

Changes detected from historical EPC data

Mar 2025from Mar 2023

EPC improved fromF31toD68

Main Fuel

Solid FuelGas

Switched from solid fuel to cleaner energy source

Heating Controls

ThermostatFull

Heating controls upgraded for better temperature management

Hot Water

Main (No Stat)Main System

Hot water system upgraded

Windows

Partial DoubleFull Double

Windows upgraded, improving insulation

Roof Insulation

PartialInsulated

Roof insulation improved

Low Energy Lighting

64%100%

More low energy lighting installed

Get a survey for this property

Level 2 HomeBuyer Report

Mid 20th centurySemi-Detached HouseEPC D

We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.

From £545 · Includes VAT

Planning

Planning history

Applications and permits filed against 4 Heol Y Dderwen, Nantgarw, Cardiff, CF15 7UJ, sourced from the PlanIt planning register.

4 Heol Y Dderwen has no planning applications on record.

But the area is active

1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

4 Heol Y Dderwen valuation sits well clear of the typical sold price in this postcode.

Current estimate

£223,000

Modelled from EPC, postcode comparables.

See how we calculated this

Last sold (2023)

£127,000

Recorded with HM Land Registry.

Sales timeline

6 July 2023Most recent
£127,000

Median price across the last 5 sales in CF15 7UJ: £150,000 (2022–2015).

Nearby sales in CF15 7UJ

On the street

Versus other Heol Y Dderwen homes

Four headline reads against 16 similar houses on this street, drawn from the latest EPC and Land Registry data.

Years Held for 4 Heol Y Dderwen lags the street by a wide margin.

Price per m²

£1,427

Street avg £1,545

Strongly below

Floor Area

89 m²

Street avg 94 m²

Below

Habitable Rooms

4 rooms

Street avg 5 rooms

Below

CO₂ Emissions

3.4 t/year

Street avg 3.9 t/year

Above

Before you decide

Everything you need to know about 4 Heol Y Dderwen

The true value, the hidden risks and the full sale history, in one report.

Pick your report · every report is £14.99

One time fee only - money back guarantee

The data behind every report

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.

£220k

1 Church Street, Taffs Well

CF15 7PG

3 bed

£219k

1 Castle Street, Taffs Well

CF15 7RL

2 bed1 bath

£213k

1 Catherine Drive, Tongwynlais

CF15 7JT

£235k

1 Anchor Street, Taffs Well

CF15 7RH

2 bed1 bath

£260k

1 Abbey Close, Taffs Well

CF15 7RS

£269k

1 Castell Coch View, Tongwynlais

CF15 7LA

2 bed1 bath

£184k

1 Ffordd Y Felin, Old Caerphilly Road, Nantgarw

CF15 7TA

£274k

1 Chapel Cottage, Tabor Street, Taffs Well

CF15 7PS

Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Cardiff district page.

Full Cardiff report

Crime

2/mo

Steady year-on-year across the wider district.

Nearest stop

0.0 km

Heol-y-Dderwen — bus stop.

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 4 Heol Y Dderwen, Nantgarw, Cardiff, CF15 7UJ. Each answer is also embedded as structured data for search engines.